Can a rental car cross into Argentina and Paraguay?

Quick answer: Yes, rental cars can cross into Argentina and Paraguay from Foz do Iguaçu, but not all companies permit it. You need express written authorization from the rental company (requested at booking or with 72 business hours notice), a Green Card insurance document, and the vehicle's ownership certificate. Additional fees, deposits, and mileage restrictions may apply. Crossing without authorization violates your contract and voids insurance coverage.

The rule: not every rental company allows it, but in Foz do Iguaçu, a strategic border region, several agencies are equipped to issue the international paperwork.

What you need to carry in the car:

1. Express authorization from the rental company to leave Brazil (a specific document; the contract alone is not enough)
2. Green Card: mandatory insurance for vehicles circulating in Mercosur countries
3. The document that replaces the vehicle's certificate of ownership

How to request it: ask for it at the time of booking or with a minimum of 72 business hours notice. Expect an extra fee and, at some rental companies, an additional deposit and a mileage limit in the neighboring country (some allow driving only up to ~25 km beyond the border: ask).

Is it worth it? For going to the Argentine park or the Duty Free, yes, if you already have a car. For Ciudad del Este, usually not: the bridge line by car is long and crossing on foot is a better solution.

Without authorization? Crossing is a breach of contract and leaves you without insurance on the other side, and inspectors ask for the papers.

Source: Rentcars · Foz rental companies · verified in Jun/2026